<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
<!-- form 表单-->
<form action="login" method="post">
    <input type="text" name="username" />
    <input type="password" name="password" />
    <button>登录</button>
</form>

</body>
</html>